ciss.c revision 127135
1/*- 2 * Copyright (c) 2001 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/ciss/ciss.c 127135 2004-03-17 17:50:55Z njl $ 27 */ 28 29/* 30 * Common Interface for SCSI-3 Support driver. 31 * 32 * CISS claims to provide a common interface between a generic SCSI 33 * transport and an intelligent host adapter. 34 * 35 * This driver supports CISS as defined in the document "CISS Command 36 * Interface for SCSI-3 Support Open Specification", Version 1.04, 37 * Valence Number 1, dated 20001127, produced by Compaq Computer 38 * Corporation. This document appears to be a hastily and somewhat 39 * arbitrarlily cut-down version of a larger (and probably even more 40 * chaotic and inconsistent) Compaq internal document. Various 41 * details were also gleaned from Compaq's "cciss" driver for Linux. 42 * 43 * We provide a shim layer between the CISS interface and CAM, 44 * offloading most of the queueing and being-a-disk chores onto CAM. 45 * Entry to the driver is via the PCI bus attachment (ciss_probe, 46 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 47 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 48 * citizens and we have to fake up some responses to get reasonable 49 * behaviour out of them. In addition, the CISS command set is by no 50 * means adequate to support the functionality of a RAID controller, 51 * and thus the supported Compaq adapters utilise portions of the 52 * control protocol from earlier Compaq adapter families. 53 * 54 * Note that we only support the "simple" transport layer over PCI. 55 * This interface (ab)uses the I2O register set (specifically the post 56 * queues) to exchange commands with the adapter. Other interfaces 57 * are available, but we aren't supposed to know about them, and it is 58 * dubious whether they would provide major performance improvements 59 * except under extreme load. 60 * 61 * Currently the only supported CISS adapters are the Compaq Smart 62 * Array 5* series (5300, 5i, 532). Even with only three adapters, 63 * Compaq still manage to have interface variations. 64 * 65 * 66 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 67 * well as Paul Saab at Yahoo! for their assistance in making this 68 * driver happen. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> 73#include <sys/malloc.h> 74#include <sys/kernel.h> 75#include <sys/bus.h> 76#include <sys/conf.h> 77#include <sys/stat.h> 78 79#include <cam/cam.h> 80#include <cam/cam_ccb.h> 81#include <cam/cam_periph.h> 82#include <cam/cam_sim.h> 83#include <cam/cam_xpt_sim.h> 84#include <cam/scsi/scsi_all.h> 85#include <cam/scsi/scsi_message.h> 86 87#include <machine/clock.h> 88#include <machine/bus_memio.h> 89#include <machine/bus.h> 90#include <machine/endian.h> 91#include <machine/resource.h> 92#include <sys/rman.h> 93 94#include <dev/pci/pcireg.h> 95#include <dev/pci/pcivar.h> 96 97#include <dev/ciss/cissreg.h> 98#include <dev/ciss/cissvar.h> 99#include <dev/ciss/cissio.h> 100 101MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 102 103/* pci interface */ 104static int ciss_lookup(device_t dev); 105static int ciss_probe(device_t dev); 106static int ciss_attach(device_t dev); 107static int ciss_detach(device_t dev); 108static int ciss_shutdown(device_t dev); 109 110/* (de)initialisation functions, control wrappers */ 111static int ciss_init_pci(struct ciss_softc *sc); 112static int ciss_wait_adapter(struct ciss_softc *sc); 113static int ciss_flush_adapter(struct ciss_softc *sc); 114static int ciss_init_requests(struct ciss_softc *sc); 115static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 116 int nseg, int error); 117static int ciss_identify_adapter(struct ciss_softc *sc); 118static int ciss_init_logical(struct ciss_softc *sc); 119static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 120static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 121static int ciss_update_config(struct ciss_softc *sc); 122static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 123static void ciss_accept_media_complete(struct ciss_request *cr); 124static void ciss_free(struct ciss_softc *sc); 125 126/* request submission/completion */ 127static int ciss_start(struct ciss_request *cr); 128static void ciss_done(struct ciss_softc *sc); 129static void ciss_intr(void *arg); 130static void ciss_complete(struct ciss_softc *sc); 131static int ciss_report_request(struct ciss_request *cr, int *command_status, 132 int *scsi_status); 133static int ciss_synch_request(struct ciss_request *cr, int timeout); 134static int ciss_poll_request(struct ciss_request *cr, int timeout); 135static int ciss_wait_request(struct ciss_request *cr, int timeout); 136#if 0 137static int ciss_abort_request(struct ciss_request *cr); 138#endif 139 140/* request queueing */ 141static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 142static void ciss_preen_command(struct ciss_request *cr); 143static void ciss_release_request(struct ciss_request *cr); 144 145/* request helpers */ 146static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 147 int opcode, void **bufp, size_t bufsize); 148static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 149 150/* DMA map/unmap */ 151static int ciss_map_request(struct ciss_request *cr); 152static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 153 int nseg, int error); 154static void ciss_unmap_request(struct ciss_request *cr); 155 156/* CAM interface */ 157static int ciss_cam_init(struct ciss_softc *sc); 158static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 159static void ciss_cam_rescan_all(struct ciss_softc *sc); 160static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 161static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 162static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 163static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 164static void ciss_cam_poll(struct cam_sim *sim); 165static void ciss_cam_complete(struct ciss_request *cr); 166static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 167static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 168static int ciss_name_device(struct ciss_softc *sc, int target); 169 170/* periodic status monitoring */ 171static void ciss_periodic(void *arg); 172static void ciss_notify_event(struct ciss_softc *sc); 173static void ciss_notify_complete(struct ciss_request *cr); 174static int ciss_notify_abort(struct ciss_softc *sc); 175static int ciss_notify_abort_bmic(struct ciss_softc *sc); 176static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 177static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 178 179/* debugging output */ 180static void ciss_print_request(struct ciss_request *cr); 181static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 182static const char *ciss_name_ldrive_status(int status); 183static int ciss_decode_ldrive_status(int status); 184static const char *ciss_name_ldrive_org(int org); 185static const char *ciss_name_command_status(int status); 186 187/* 188 * PCI bus interface. 189 */ 190static device_method_t ciss_methods[] = { 191 /* Device interface */ 192 DEVMETHOD(device_probe, ciss_probe), 193 DEVMETHOD(device_attach, ciss_attach), 194 DEVMETHOD(device_detach, ciss_detach), 195 DEVMETHOD(device_shutdown, ciss_shutdown), 196 { 0, 0 } 197}; 198 199static driver_t ciss_pci_driver = { 200 "ciss", 201 ciss_methods, 202 sizeof(struct ciss_softc) 203}; 204 205static devclass_t ciss_devclass; 206DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 207 208/* 209 * Control device interface. 210 */ 211static d_open_t ciss_open; 212static d_close_t ciss_close; 213static d_ioctl_t ciss_ioctl; 214 215static struct cdevsw ciss_cdevsw = { 216 .d_version = D_VERSION, 217 .d_flags = D_NEEDGIANT, 218 .d_open = ciss_open, 219 .d_close = ciss_close, 220 .d_ioctl = ciss_ioctl, 221 .d_name = "ciss", 222}; 223 224/************************************************************************ 225 * CISS adapters amazingly don't have a defined programming interface 226 * value. (One could say some very despairing things about PCI and 227 * people just not getting the general idea.) So we are forced to 228 * stick with matching against subvendor/subdevice, and thus have to 229 * be updated for every new CISS adapter that appears. 230 */ 231#define CISS_BOARD_SA5 (1<<0) 232#define CISS_BOARD_SA5B (1<<1) 233 234static struct 235{ 236 u_int16_t subvendor; 237 u_int16_t subdevice; 238 int flags; 239 char *desc; 240} ciss_vendor_data[] = { 241 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 242 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 243 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 244 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 245 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 246 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 247 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 248 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 249 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 250 { 0, 0, 0, NULL } 251}; 252 253/************************************************************************ 254 * Find a match for the device in our list of known adapters. 255 */ 256static int 257ciss_lookup(device_t dev) 258{ 259 int i; 260 261 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 262 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 263 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 264 return(i); 265 } 266 return(-1); 267} 268 269/************************************************************************ 270 * Match a known CISS adapter. 271 */ 272static int 273ciss_probe(device_t dev) 274{ 275 int i; 276 277 i = ciss_lookup(dev); 278 if (i != -1) { 279 device_set_desc(dev, ciss_vendor_data[i].desc); 280 return(-10); 281 } 282 return(ENOENT); 283} 284 285/************************************************************************ 286 * Attach the driver to this adapter. 287 */ 288static int 289ciss_attach(device_t dev) 290{ 291 struct ciss_softc *sc; 292 int i, error; 293 294 debug_called(1); 295 296#ifdef CISS_DEBUG 297 /* print structure/union sizes */ 298 debug_struct(ciss_command); 299 debug_struct(ciss_header); 300 debug_union(ciss_device_address); 301 debug_struct(ciss_cdb); 302 debug_struct(ciss_report_cdb); 303 debug_struct(ciss_notify_cdb); 304 debug_struct(ciss_notify); 305 debug_struct(ciss_message_cdb); 306 debug_struct(ciss_error_info_pointer); 307 debug_struct(ciss_error_info); 308 debug_struct(ciss_sg_entry); 309 debug_struct(ciss_config_table); 310 debug_struct(ciss_bmic_cdb); 311 debug_struct(ciss_bmic_id_ldrive); 312 debug_struct(ciss_bmic_id_lstatus); 313 debug_struct(ciss_bmic_id_table); 314 debug_struct(ciss_bmic_id_pdrive); 315 debug_struct(ciss_bmic_blink_pdrive); 316 debug_struct(ciss_bmic_flush_cache); 317 debug_const(CISS_MAX_REQUESTS); 318 debug_const(CISS_MAX_LOGICAL); 319 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 320 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 321 debug_const(CISS_COMMAND_ALLOC_SIZE); 322 debug_const(CISS_COMMAND_SG_LENGTH); 323 324 debug_type(cciss_pci_info_struct); 325 debug_type(cciss_coalint_struct); 326 debug_type(cciss_coalint_struct); 327 debug_type(NodeName_type); 328 debug_type(NodeName_type); 329 debug_type(Heartbeat_type); 330 debug_type(BusTypes_type); 331 debug_type(FirmwareVer_type); 332 debug_type(DriverVer_type); 333 debug_type(IOCTL_Command_struct); 334#endif 335 336 sc = device_get_softc(dev); 337 sc->ciss_dev = dev; 338 339 /* 340 * Work out adapter type. 341 */ 342 i = ciss_lookup(dev); 343 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 344 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 345 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 346 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 347 } else { 348 /* really an error on our part */ 349 ciss_printf(sc, "unable to determine hardware type\n"); 350 error = ENXIO; 351 goto out; 352 } 353 354 /* 355 * Do PCI-specific init. 356 */ 357 if ((error = ciss_init_pci(sc)) != 0) 358 goto out; 359 360 /* 361 * Initialise driver queues. 362 */ 363 ciss_initq_free(sc); 364 ciss_initq_busy(sc); 365 ciss_initq_complete(sc); 366 367 /* 368 * Initialise command/request pool. 369 */ 370 if ((error = ciss_init_requests(sc)) != 0) 371 goto out; 372 373 /* 374 * Get adapter information. 375 */ 376 if ((error = ciss_identify_adapter(sc)) != 0) 377 goto out; 378 379 /* 380 * Build our private table of logical devices. 381 */ 382 if ((error = ciss_init_logical(sc)) != 0) 383 goto out; 384 385 /* 386 * Enable interrupts so that the CAM scan can complete. 387 */ 388 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 389 390 /* 391 * Initialise the CAM interface. 392 */ 393 if ((error = ciss_cam_init(sc)) != 0) 394 goto out; 395 396 /* 397 * Start the heartbeat routine and event chain. 398 */ 399 ciss_periodic(sc); 400 401 /* 402 * Create the control device. 403 */ 404 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 405 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 406 "ciss%d", device_get_unit(sc->ciss_dev)); 407 sc->ciss_dev_t->si_drv1 = sc; 408 409 /* 410 * The adapter is running; synchronous commands can now sleep 411 * waiting for an interrupt to signal completion. 412 */ 413 sc->ciss_flags |= CISS_FLAG_RUNNING; 414 415 error = 0; 416 out: 417 if (error != 0) 418 ciss_free(sc); 419 return(error); 420} 421 422/************************************************************************ 423 * Detach the driver from this adapter. 424 */ 425static int 426ciss_detach(device_t dev) 427{ 428 struct ciss_softc *sc = device_get_softc(dev); 429 430 debug_called(1); 431 432 /* flush adapter cache */ 433 ciss_flush_adapter(sc); 434 435 destroy_dev(sc->ciss_dev_t); 436 437 /* release all resources */ 438 ciss_free(sc); 439 440 return(0); 441 442} 443 444/************************************************************************ 445 * Prepare adapter for system shutdown. 446 */ 447static int 448ciss_shutdown(device_t dev) 449{ 450 struct ciss_softc *sc = device_get_softc(dev); 451 452 debug_called(1); 453 454 /* flush adapter cache */ 455 ciss_flush_adapter(sc); 456 457 return(0); 458} 459 460/************************************************************************ 461 * Perform PCI-specific attachment actions. 462 */ 463static int 464ciss_init_pci(struct ciss_softc *sc) 465{ 466 uintptr_t cbase, csize, cofs; 467 int error; 468 469 debug_called(1); 470 471 /* 472 * Allocate register window first (we need this to find the config 473 * struct). 474 */ 475 error = ENXIO; 476 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 477 if ((sc->ciss_regs_resource = 478 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 479 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 480 ciss_printf(sc, "can't allocate register window\n"); 481 return(ENXIO); 482 } 483 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 484 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 485 486 /* 487 * Find the BAR holding the config structure. If it's not the one 488 * we already mapped for registers, map it too. 489 */ 490 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 491 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 492 if ((sc->ciss_cfg_resource = 493 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 494 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 495 ciss_printf(sc, "can't allocate config window\n"); 496 return(ENXIO); 497 } 498 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 499 csize = rman_get_end(sc->ciss_cfg_resource) - 500 rman_get_start(sc->ciss_cfg_resource) + 1; 501 } else { 502 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 503 csize = rman_get_end(sc->ciss_regs_resource) - 504 rman_get_start(sc->ciss_regs_resource) + 1; 505 } 506 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 507 508 /* 509 * Use the base/size/offset values we just calculated to 510 * sanity-check the config structure. If it's OK, point to it. 511 */ 512 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 513 ciss_printf(sc, "config table outside window\n"); 514 return(ENXIO); 515 } 516 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 517 debug(1, "config struct at %p", sc->ciss_cfg); 518 519 /* 520 * Validate the config structure. If we supported other transport 521 * methods, we could select amongst them at this point in time. 522 */ 523 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 524 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 525 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 526 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 527 return(ENXIO); 528 } 529 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 530 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 531 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 532 sc->ciss_cfg->valence); 533 return(ENXIO); 534 } 535 536 /* 537 * Put the board into simple mode, and tell it we're using the low 538 * 4GB of RAM. Set the default interrupt coalescing options. 539 */ 540 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 541 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 542 return(ENXIO); 543 } 544 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 545 sc->ciss_cfg->command_physlimit = 0; 546 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 547 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 548 549 if (ciss_update_config(sc)) { 550 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 551 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 552 return(ENXIO); 553 } 554 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 555 ciss_printf(sc, 556 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 557 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 558 return(ENXIO); 559 } 560 561 /* 562 * Wait for the adapter to come ready. 563 */ 564 if ((error = ciss_wait_adapter(sc)) != 0) 565 return(error); 566 567 /* 568 * Turn off interrupts before we go routing anything. 569 */ 570 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 571 572 /* 573 * Allocate and set up our interrupt. 574 */ 575 sc->ciss_irq_rid = 0; 576 if ((sc->ciss_irq_resource = 577 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 578 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 579 ciss_printf(sc, "can't allocate interrupt\n"); 580 return(ENXIO); 581 } 582 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 583 &sc->ciss_intr)) { 584 ciss_printf(sc, "can't set up interrupt\n"); 585 return(ENXIO); 586 } 587 588 /* 589 * Allocate the parent bus DMA tag appropriate for our PCI 590 * interface. 591 * 592 * Note that "simple" adapters can only address within a 32-bit 593 * span. 594 */ 595 if (bus_dma_tag_create(NULL, /* parent */ 596 1, 0, /* alignment, boundary */ 597 BUS_SPACE_MAXADDR, /* lowaddr */ 598 BUS_SPACE_MAXADDR, /* highaddr */ 599 NULL, NULL, /* filter, filterarg */ 600 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 601 CISS_COMMAND_SG_LENGTH, /* nsegments */ 602 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 603 BUS_DMA_ALLOCNOW, /* flags */ 604 NULL, NULL, /* lockfunc, lockarg */ 605 &sc->ciss_parent_dmat)) { 606 ciss_printf(sc, "can't allocate parent DMA tag\n"); 607 return(ENOMEM); 608 } 609 610 /* 611 * Create DMA tag for mapping buffers into adapter-addressable 612 * space. 613 */ 614 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 615 1, 0, /* alignment, boundary */ 616 BUS_SPACE_MAXADDR, /* lowaddr */ 617 BUS_SPACE_MAXADDR, /* highaddr */ 618 NULL, NULL, /* filter, filterarg */ 619 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 620 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 621 0, /* flags */ 622 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 623 &sc->ciss_buffer_dmat)) { 624 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 625 return(ENOMEM); 626 } 627 return(0); 628} 629 630/************************************************************************ 631 * Wait for the adapter to come ready. 632 */ 633static int 634ciss_wait_adapter(struct ciss_softc *sc) 635{ 636 int i; 637 638 debug_called(1); 639 640 /* 641 * Wait for the adapter to come ready. 642 */ 643 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 644 ciss_printf(sc, "waiting for adapter to come ready...\n"); 645 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 646 DELAY(1000000); /* one second */ 647 if (i > 30) { 648 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 649 return(EIO); 650 } 651 } 652 } 653 return(0); 654} 655 656/************************************************************************ 657 * Flush the adapter cache. 658 */ 659static int 660ciss_flush_adapter(struct ciss_softc *sc) 661{ 662 struct ciss_request *cr; 663 struct ciss_bmic_flush_cache *cbfc; 664 int error, command_status; 665 666 debug_called(1); 667 668 cr = NULL; 669 cbfc = NULL; 670 671 /* 672 * Build a BMIC request to flush the cache. We don't disable 673 * it, as we may be going to do more I/O (eg. we are emulating 674 * the Synchronise Cache command). 675 */ 676 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 677 error = ENOMEM; 678 goto out; 679 } 680 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 681 (void **)&cbfc, sizeof(*cbfc))) != 0) 682 goto out; 683 684 /* 685 * Submit the request and wait for it to complete. 686 */ 687 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 688 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 689 goto out; 690 } 691 692 /* 693 * Check response. 694 */ 695 ciss_report_request(cr, &command_status, NULL); 696 switch(command_status) { 697 case CISS_CMD_STATUS_SUCCESS: 698 break; 699 default: 700 ciss_printf(sc, "error flushing cache (%s)\n", 701 ciss_name_command_status(command_status)); 702 error = EIO; 703 goto out; 704 } 705 706out: 707 if (cbfc != NULL) 708 free(cbfc, CISS_MALLOC_CLASS); 709 if (cr != NULL) 710 ciss_release_request(cr); 711 return(error); 712} 713 714/************************************************************************ 715 * Allocate memory for the adapter command structures, initialise 716 * the request structures. 717 * 718 * Note that the entire set of commands are allocated in a single 719 * contiguous slab. 720 */ 721static int 722ciss_init_requests(struct ciss_softc *sc) 723{ 724 struct ciss_request *cr; 725 int i; 726 727 debug_called(1); 728 729 /* 730 * Calculate the number of request structures/commands we are 731 * going to provide for this adapter. 732 */ 733 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 734 735 if (bootverbose) 736 ciss_printf(sc, "using %d of %d available commands\n", 737 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 738 739 /* 740 * Create the DMA tag for commands. 741 */ 742 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 743 1, 0, /* alignment, boundary */ 744 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 745 BUS_SPACE_MAXADDR, /* highaddr */ 746 NULL, NULL, /* filter, filterarg */ 747 CISS_COMMAND_ALLOC_SIZE * 748 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 749 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 750 BUS_DMA_ALLOCNOW, /* flags */ 751 NULL, NULL, /* lockfunc, lockarg */ 752 &sc->ciss_command_dmat)) { 753 ciss_printf(sc, "can't allocate command DMA tag\n"); 754 return(ENOMEM); 755 } 756 /* 757 * Allocate memory and make it available for DMA. 758 */ 759 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 760 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 761 ciss_printf(sc, "can't allocate command memory\n"); 762 return(ENOMEM); 763 } 764 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 765 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 766 ciss_command_map_helper, sc, 0); 767 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 768 769 /* 770 * Set up the request and command structures, push requests onto 771 * the free queue. 772 */ 773 for (i = 1; i < sc->ciss_max_requests; i++) { 774 cr = &sc->ciss_request[i]; 775 cr->cr_sc = sc; 776 cr->cr_tag = i; 777 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 778 ciss_enqueue_free(cr); 779 } 780 return(0); 781} 782 783static void 784ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 785{ 786 struct ciss_softc *sc = (struct ciss_softc *)arg; 787 788 sc->ciss_command_phys = segs->ds_addr; 789} 790 791/************************************************************************ 792 * Identify the adapter, print some information about it. 793 */ 794static int 795ciss_identify_adapter(struct ciss_softc *sc) 796{ 797 struct ciss_request *cr; 798 int error, command_status; 799 800 debug_called(1); 801 802 cr = NULL; 803 804 /* 805 * Get a request, allocate storage for the adapter data. 806 */ 807 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 808 (void **)&sc->ciss_id, 809 sizeof(*sc->ciss_id))) != 0) 810 goto out; 811 812 /* 813 * Submit the request and wait for it to complete. 814 */ 815 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 816 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 817 goto out; 818 } 819 820 /* 821 * Check response. 822 */ 823 ciss_report_request(cr, &command_status, NULL); 824 switch(command_status) { 825 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 826 break; 827 case CISS_CMD_STATUS_DATA_UNDERRUN: 828 case CISS_CMD_STATUS_DATA_OVERRUN: 829 ciss_printf(sc, "data over/underrun reading adapter information\n"); 830 default: 831 ciss_printf(sc, "error reading adapter information (%s)\n", 832 ciss_name_command_status(command_status)); 833 error = EIO; 834 goto out; 835 } 836 837 /* sanity-check reply */ 838 if (!sc->ciss_id->big_map_supported) { 839 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 840 error = ENXIO; 841 goto out; 842 } 843 844#if 0 845 /* XXX later revisions may not need this */ 846 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 847#endif 848 849 /* XXX only really required for old 5300 adapters? */ 850 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 851 852 /* print information */ 853 if (bootverbose) { 854 ciss_printf(sc, " %d logical drive%s configured\n", 855 sc->ciss_id->configured_logical_drives, 856 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 857 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 858 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 859 860 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 861 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 862 ciss_printf(sc, " supported I/O methods 0x%b\n", 863 sc->ciss_cfg->supported_methods, 864 "\20\1READY\2simple\3performant\4MEMQ\n"); 865 ciss_printf(sc, " active I/O method 0x%b\n", 866 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 867 ciss_printf(sc, " 4G page base 0x%08x\n", 868 sc->ciss_cfg->command_physlimit); 869 ciss_printf(sc, " interrupt coalesce delay %dus\n", 870 sc->ciss_cfg->interrupt_coalesce_delay); 871 ciss_printf(sc, " interrupt coalesce count %d\n", 872 sc->ciss_cfg->interrupt_coalesce_count); 873 ciss_printf(sc, " max outstanding commands %d\n", 874 sc->ciss_cfg->max_outstanding_commands); 875 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 876 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 877 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 878 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 879 } 880 881out: 882 if (error) { 883 if (sc->ciss_id != NULL) { 884 free(sc->ciss_id, CISS_MALLOC_CLASS); 885 sc->ciss_id = NULL; 886 } 887 } 888 if (cr != NULL) 889 ciss_release_request(cr); 890 return(error); 891} 892 893/************************************************************************ 894 * Find logical drives on the adapter. 895 */ 896static int 897ciss_init_logical(struct ciss_softc *sc) 898{ 899 struct ciss_request *cr; 900 struct ciss_command *cc; 901 struct ciss_report_cdb *crc; 902 struct ciss_lun_report *cll; 903 int error, i; 904 size_t report_size; 905 int ndrives; 906 int command_status; 907 908 debug_called(1); 909 910 cr = NULL; 911 cll = NULL; 912 913 /* 914 * Get a request, allocate storage for the address list. 915 */ 916 if ((error = ciss_get_request(sc, &cr)) != 0) 917 goto out; 918 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 919 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 920 ciss_printf(sc, "can't allocate memory for logical drive list\n"); 921 error = ENOMEM; 922 goto out; 923 } 924 925 /* 926 * Build the Report Logical LUNs command. 927 */ 928 cc = CISS_FIND_COMMAND(cr); 929 cr->cr_data = cll; 930 cr->cr_length = report_size; 931 cr->cr_flags = CISS_REQ_DATAIN; 932 933 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 934 cc->header.address.physical.bus = 0; 935 cc->header.address.physical.target = 0; 936 cc->cdb.cdb_length = sizeof(*crc); 937 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 938 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 939 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 940 cc->cdb.timeout = 30; /* XXX better suggestions? */ 941 942 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 943 bzero(crc, sizeof(*crc)); 944 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 945 crc->length = htonl(report_size); /* big-endian field */ 946 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 947 948 /* 949 * Submit the request and wait for it to complete. (timeout 950 * here should be much greater than above) 951 */ 952 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 953 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 954 goto out; 955 } 956 957 /* 958 * Check response. Note that data over/underrun is OK. 959 */ 960 ciss_report_request(cr, &command_status, NULL); 961 switch(command_status) { 962 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 963 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 964 break; 965 case CISS_CMD_STATUS_DATA_OVERRUN: 966 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 967 CISS_MAX_LOGICAL); 968 break; 969 default: 970 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 971 ciss_name_command_status(command_status)); 972 error = EIO; 973 goto out; 974 } 975 ciss_release_request(cr); 976 cr = NULL; 977 978 /* sanity-check reply */ 979 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 980 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 981 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 982 ndrives, CISS_MAX_LOGICAL); 983 return(ENXIO); 984 } 985 986 /* 987 * Save logical drive information. 988 */ 989 if (bootverbose) 990 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 991 if (ndrives != sc->ciss_id->configured_logical_drives) 992 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 993 ndrives, sc->ciss_id->configured_logical_drives); 994 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 995 if (i < ndrives) { 996 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 997 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 998 continue; 999 /* 1000 * If the drive has had media exchanged, we should bring it online. 1001 */ 1002 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 1003 ciss_accept_media(sc, i, 0); 1004 1005 } else { 1006 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1007 } 1008 } 1009 error = 0; 1010 1011 out: 1012 /* 1013 * Note that if the error is a timeout, we are taking a slight 1014 * risk here and assuming that the adapter will not respond at a 1015 * later time, scribbling over host memory. 1016 */ 1017 if (cr != NULL) 1018 ciss_release_request(cr); 1019 if (cll != NULL) 1020 free(cll, CISS_MALLOC_CLASS); 1021 return(error); 1022} 1023 1024static int 1025ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1026{ 1027 struct ciss_request *cr; 1028 struct ciss_command *cc; 1029 struct scsi_inquiry *inq; 1030 int error; 1031 int command_status; 1032 int lun; 1033 1034 cr = NULL; 1035 lun = ld->cl_address.logical.lun; 1036 1037 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1038 1039 if ((error = ciss_get_request(sc, &cr)) != 0) 1040 goto out; 1041 1042 cc = CISS_FIND_COMMAND(cr); 1043 cr->cr_data = &ld->cl_geometry; 1044 cr->cr_length = sizeof(ld->cl_geometry); 1045 cr->cr_flags = CISS_REQ_DATAIN; 1046 1047 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1048 cc->header.address.logical.lun = lun; 1049 cc->cdb.cdb_length = 6; 1050 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1051 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1052 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1053 cc->cdb.timeout = 30; 1054 1055 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1056 inq->opcode = INQUIRY; 1057 inq->byte2 = SI_EVPD; 1058 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1059 inq->length = sizeof(ld->cl_geometry); 1060 1061 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1062 ciss_printf(sc, "error getting geometry (%d)\n", error); 1063 goto out; 1064 } 1065 1066 ciss_report_request(cr, &command_status, NULL); 1067 switch(command_status) { 1068 case CISS_CMD_STATUS_SUCCESS: 1069 case CISS_CMD_STATUS_DATA_UNDERRUN: 1070 break; 1071 case CISS_CMD_STATUS_DATA_OVERRUN: 1072 ciss_printf(sc, "WARNING: Data overrun\n"); 1073 break; 1074 default: 1075 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1076 ciss_name_command_status(command_status)); 1077 break; 1078 } 1079 1080out: 1081 if (cr != NULL) 1082 ciss_release_request(cr); 1083 return(error); 1084} 1085/************************************************************************ 1086 * Identify a logical drive, initialise state related to it. 1087 */ 1088static int 1089ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1090{ 1091 struct ciss_request *cr; 1092 struct ciss_command *cc; 1093 struct ciss_bmic_cdb *cbc; 1094 int error, command_status; 1095 1096 debug_called(1); 1097 1098 cr = NULL; 1099 1100 /* 1101 * Build a BMIC request to fetch the drive ID. 1102 */ 1103 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1104 (void **)&ld->cl_ldrive, 1105 sizeof(*ld->cl_ldrive))) != 0) 1106 goto out; 1107 cc = CISS_FIND_COMMAND(cr); 1108 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1109 cbc->log_drive = ld->cl_address.logical.lun; 1110 1111 /* 1112 * Submit the request and wait for it to complete. 1113 */ 1114 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1115 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1116 goto out; 1117 } 1118 1119 /* 1120 * Check response. 1121 */ 1122 ciss_report_request(cr, &command_status, NULL); 1123 switch(command_status) { 1124 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1125 break; 1126 case CISS_CMD_STATUS_DATA_UNDERRUN: 1127 case CISS_CMD_STATUS_DATA_OVERRUN: 1128 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1129 default: 1130 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1131 ciss_name_command_status(command_status)); 1132 error = EIO; 1133 goto out; 1134 } 1135 ciss_release_request(cr); 1136 cr = NULL; 1137 1138 /* 1139 * Build a CISS BMIC command to get the logical drive status. 1140 */ 1141 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1142 goto out; 1143 1144 /* 1145 * Get the logical drive geometry. 1146 */ 1147 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1148 goto out; 1149 1150 /* 1151 * Print the drive's basic characteristics. 1152 */ 1153 if (bootverbose) { 1154 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1155 ld->cl_address.logical.lun, 1156 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1157 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1158 ld->cl_ldrive->block_size)); 1159 1160 ciss_print_ldrive(sc, ld); 1161 } 1162out: 1163 if (error != 0) { 1164 /* make the drive not-exist */ 1165 ld->cl_status = CISS_LD_NONEXISTENT; 1166 if (ld->cl_ldrive != NULL) { 1167 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1168 ld->cl_ldrive = NULL; 1169 } 1170 if (ld->cl_lstatus != NULL) { 1171 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1172 ld->cl_lstatus = NULL; 1173 } 1174 } 1175 if (cr != NULL) 1176 ciss_release_request(cr); 1177 1178 return(error); 1179} 1180 1181/************************************************************************ 1182 * Get status for a logical drive. 1183 * 1184 * XXX should we also do this in response to Test Unit Ready? 1185 */ 1186static int 1187ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1188{ 1189 struct ciss_request *cr; 1190 struct ciss_command *cc; 1191 struct ciss_bmic_cdb *cbc; 1192 int error, command_status; 1193 1194 /* 1195 * Build a CISS BMIC command to get the logical drive status. 1196 */ 1197 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1198 (void **)&ld->cl_lstatus, 1199 sizeof(*ld->cl_lstatus))) != 0) 1200 goto out; 1201 cc = CISS_FIND_COMMAND(cr); 1202 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1203 cbc->log_drive = ld->cl_address.logical.lun; 1204 1205 /* 1206 * Submit the request and wait for it to complete. 1207 */ 1208 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1209 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1210 goto out; 1211 } 1212 1213 /* 1214 * Check response. 1215 */ 1216 ciss_report_request(cr, &command_status, NULL); 1217 switch(command_status) { 1218 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1219 break; 1220 case CISS_CMD_STATUS_DATA_UNDERRUN: 1221 case CISS_CMD_STATUS_DATA_OVERRUN: 1222 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1223 default: 1224 ciss_printf(sc, "error reading logical drive status (%s)\n", 1225 ciss_name_command_status(command_status)); 1226 error = EIO; 1227 goto out; 1228 } 1229 1230 /* 1231 * Set the drive's summary status based on the returned status. 1232 * 1233 * XXX testing shows that a failed JBOD drive comes back at next 1234 * boot in "queued for expansion" mode. WTF? 1235 */ 1236 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1237 1238out: 1239 if (cr != NULL) 1240 ciss_release_request(cr); 1241 return(error); 1242} 1243 1244/************************************************************************ 1245 * Notify the adapter of a config update. 1246 */ 1247static int 1248ciss_update_config(struct ciss_softc *sc) 1249{ 1250 int i; 1251 1252 debug_called(1); 1253 1254 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1255 for (i = 0; i < 1000; i++) { 1256 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1257 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1258 return(0); 1259 } 1260 DELAY(1000); 1261 } 1262 return(1); 1263} 1264 1265/************************************************************************ 1266 * Accept new media into a logical drive. 1267 * 1268 * XXX The drive has previously been offline; it would be good if we 1269 * could make sure it's not open right now. 1270 */ 1271static int 1272ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1273{ 1274 struct ciss_request *cr; 1275 struct ciss_command *cc; 1276 struct ciss_bmic_cdb *cbc; 1277 int error; 1278 1279 debug(0, "bringing logical drive %d back online %ssynchronously", 1280 ldrive, async ? "a" : ""); 1281 1282 /* 1283 * Build a CISS BMIC command to bring the drive back online. 1284 */ 1285 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1286 NULL, 0)) != 0) 1287 goto out; 1288 cc = CISS_FIND_COMMAND(cr); 1289 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1290 cbc->log_drive = ldrive; 1291 1292 /* 1293 * Dispatch the request asynchronously if we can't sleep waiting 1294 * for it to complete. 1295 */ 1296 if (async) { 1297 cr->cr_complete = ciss_accept_media_complete; 1298 if ((error = ciss_start(cr)) != 0) 1299 goto out; 1300 return(0); 1301 } else { 1302 /* 1303 * Submit the request and wait for it to complete. 1304 */ 1305 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1306 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1307 goto out; 1308 } 1309 } 1310 1311 /* 1312 * Call the completion callback manually. 1313 */ 1314 ciss_accept_media_complete(cr); 1315 return(0); 1316 1317out: 1318 if (cr != NULL) 1319 ciss_release_request(cr); 1320 return(error); 1321} 1322 1323static void 1324ciss_accept_media_complete(struct ciss_request *cr) 1325{ 1326 int command_status; 1327 1328 /* 1329 * Check response. 1330 */ 1331 ciss_report_request(cr, &command_status, NULL); 1332 switch(command_status) { 1333 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1334 /* we should get a logical drive status changed event here */ 1335 break; 1336 default: 1337 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1338 ciss_name_command_status(command_status)); 1339 break; 1340 } 1341 ciss_release_request(cr); 1342} 1343 1344/************************************************************************ 1345 * Release adapter resources. 1346 */ 1347static void 1348ciss_free(struct ciss_softc *sc) 1349{ 1350 struct ciss_request *cr; 1351 1352 debug_called(1); 1353 1354 /* we're going away */ 1355 sc->ciss_flags |= CISS_FLAG_ABORTING; 1356 1357 /* terminate the periodic heartbeat routine */ 1358 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1359 1360 /* cancel the Event Notify chain */ 1361 ciss_notify_abort(sc); 1362 1363 /* free the controller data */ 1364 if (sc->ciss_id != NULL) 1365 free(sc->ciss_id, CISS_MALLOC_CLASS); 1366 1367 /* release I/O resources */ 1368 if (sc->ciss_regs_resource != NULL) 1369 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1370 sc->ciss_regs_rid, sc->ciss_regs_resource); 1371 if (sc->ciss_cfg_resource != NULL) 1372 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1373 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1374 if (sc->ciss_intr != NULL) 1375 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1376 if (sc->ciss_irq_resource != NULL) 1377 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1378 sc->ciss_irq_rid, sc->ciss_irq_resource); 1379 1380 /* destroy DMA tags */ 1381 if (sc->ciss_parent_dmat) 1382 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1383 1384 while ((cr = ciss_dequeue_free(sc)) != NULL) 1385 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1386 if (sc->ciss_buffer_dmat) 1387 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1388 1389 /* destroy command memory and DMA tag */ 1390 if (sc->ciss_command != NULL) { 1391 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1392 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1393 } 1394 if (sc->ciss_command_dmat) 1395 bus_dma_tag_destroy(sc->ciss_command_dmat); 1396 1397 /* disconnect from CAM */ 1398 if (sc->ciss_cam_sim) { 1399 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1400 cam_sim_free(sc->ciss_cam_sim, 0); 1401 } 1402 if (sc->ciss_cam_devq) 1403 cam_simq_free(sc->ciss_cam_devq); 1404 /* XXX what about ciss_cam_path? */ 1405} 1406 1407/************************************************************************ 1408 * Give a command to the adapter. 1409 * 1410 * Note that this uses the simple transport layer directly. If we 1411 * want to add support for other layers, we'll need a switch of some 1412 * sort. 1413 * 1414 * Note that the simple transport layer has no way of refusing a 1415 * command; we only have as many request structures as the adapter 1416 * supports commands, so we don't have to check (this presumes that 1417 * the adapter can handle commands as fast as we throw them at it). 1418 */ 1419static int 1420ciss_start(struct ciss_request *cr) 1421{ 1422 struct ciss_command *cc; /* XXX debugging only */ 1423 int error; 1424 1425 cc = CISS_FIND_COMMAND(cr); 1426 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1427 1428 /* 1429 * Map the request's data. 1430 */ 1431 if ((error = ciss_map_request(cr))) 1432 return(error); 1433 1434#if 0 1435 ciss_print_request(cr); 1436#endif 1437 1438 return(0); 1439} 1440 1441/************************************************************************ 1442 * Fetch completed request(s) from the adapter, queue them for 1443 * completion handling. 1444 * 1445 * Note that this uses the simple transport layer directly. If we 1446 * want to add support for other layers, we'll need a switch of some 1447 * sort. 1448 * 1449 * Note that the simple transport mechanism does not require any 1450 * reentrancy protection; the OPQ read is atomic. If there is a 1451 * chance of a race with something else that might move the request 1452 * off the busy list, then we will have to lock against that 1453 * (eg. timeouts, etc.) 1454 */ 1455static void 1456ciss_done(struct ciss_softc *sc) 1457{ 1458 struct ciss_request *cr; 1459 struct ciss_command *cc; 1460 u_int32_t tag, index; 1461 int complete; 1462 1463 debug_called(3); 1464 1465 /* 1466 * Loop quickly taking requests from the adapter and moving them 1467 * from the busy queue to the completed queue. 1468 */ 1469 complete = 0; 1470 for (;;) { 1471 1472 /* see if the OPQ contains anything */ 1473 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1474 break; 1475 1476 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1477 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1478 break; 1479 index = tag >> 2; 1480 debug(2, "completed command %d%s", index, 1481 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1482 if (index >= sc->ciss_max_requests) { 1483 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1484 continue; 1485 } 1486 cr = &(sc->ciss_request[index]); 1487 cc = CISS_FIND_COMMAND(cr); 1488 cc->header.host_tag = tag; /* not updated by adapter */ 1489 if (ciss_remove_busy(cr)) { 1490 /* assume this is garbage out of the adapter */ 1491 ciss_printf(sc, "completed nonbusy request %d\n", index); 1492 } else { 1493 ciss_enqueue_complete(cr); 1494 } 1495 complete = 1; 1496 } 1497 1498 /* 1499 * Invoke completion processing. If we can defer this out of 1500 * interrupt context, that'd be good. 1501 */ 1502 if (complete) 1503 ciss_complete(sc); 1504} 1505 1506/************************************************************************ 1507 * Take an interrupt from the adapter. 1508 */ 1509static void 1510ciss_intr(void *arg) 1511{ 1512 struct ciss_softc *sc = (struct ciss_softc *)arg; 1513 1514 /* 1515 * The only interrupt we recognise indicates that there are 1516 * entries in the outbound post queue. 1517 */ 1518 ciss_done(sc); 1519} 1520 1521/************************************************************************ 1522 * Process completed requests. 1523 * 1524 * Requests can be completed in three fashions: 1525 * 1526 * - by invoking a callback function (cr_complete is non-null) 1527 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1528 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1529 */ 1530static void 1531ciss_complete(struct ciss_softc *sc) 1532{ 1533 struct ciss_request *cr; 1534 1535 debug_called(2); 1536 1537 /* 1538 * Loop taking requests off the completed queue and performing 1539 * completion processing on them. 1540 */ 1541 for (;;) { 1542 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1543 break; 1544 ciss_unmap_request(cr); 1545 1546 /* 1547 * If the request has a callback, invoke it. 1548 */ 1549 if (cr->cr_complete != NULL) { 1550 cr->cr_complete(cr); 1551 continue; 1552 } 1553 1554 /* 1555 * If someone is sleeping on this request, wake them up. 1556 */ 1557 if (cr->cr_flags & CISS_REQ_SLEEP) { 1558 cr->cr_flags &= ~CISS_REQ_SLEEP; 1559 wakeup(cr); 1560 continue; 1561 } 1562 1563 /* 1564 * If someone is polling this request for completion, signal. 1565 */ 1566 if (cr->cr_flags & CISS_REQ_POLL) { 1567 cr->cr_flags &= ~CISS_REQ_POLL; 1568 continue; 1569 } 1570 1571 /* 1572 * Give up and throw the request back on the free queue. This 1573 * should never happen; resources will probably be lost. 1574 */ 1575 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1576 ciss_enqueue_free(cr); 1577 } 1578} 1579 1580/************************************************************************ 1581 * Report on the completion status of a request, and pass back SCSI 1582 * and command status values. 1583 */ 1584static int 1585ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1586{ 1587 struct ciss_command *cc; 1588 struct ciss_error_info *ce; 1589 1590 debug_called(2); 1591 1592 cc = CISS_FIND_COMMAND(cr); 1593 ce = (struct ciss_error_info *)&(cc->sg[0]); 1594 1595 /* 1596 * We don't consider data under/overrun an error for the Report 1597 * Logical/Physical LUNs commands. 1598 */ 1599 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1600 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1601 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1602 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1603 debug(2, "ignoring irrelevant under/overrun error"); 1604 } 1605 1606 /* 1607 * Check the command's error bit, if clear, there's no status and 1608 * everything is OK. 1609 */ 1610 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1611 if (scsi_status != NULL) 1612 *scsi_status = SCSI_STATUS_OK; 1613 if (command_status != NULL) 1614 *command_status = CISS_CMD_STATUS_SUCCESS; 1615 return(0); 1616 } else { 1617 if (command_status != NULL) 1618 *command_status = ce->command_status; 1619 if (scsi_status != NULL) { 1620 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1621 *scsi_status = ce->scsi_status; 1622 } else { 1623 *scsi_status = -1; 1624 } 1625 } 1626 if (bootverbose) 1627 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1628 ce->command_status, ciss_name_command_status(ce->command_status), 1629 ce->scsi_status); 1630 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1631 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1632 ce->additional_error_info.invalid_command.offense_size, 1633 ce->additional_error_info.invalid_command.offense_offset, 1634 ce->additional_error_info.invalid_command.offense_value); 1635 } 1636 } 1637 return(1); 1638} 1639 1640/************************************************************************ 1641 * Issue a request and don't return until it's completed. 1642 * 1643 * Depending on adapter status, we may poll or sleep waiting for 1644 * completion. 1645 */ 1646static int 1647ciss_synch_request(struct ciss_request *cr, int timeout) 1648{ 1649 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1650 return(ciss_wait_request(cr, timeout)); 1651 } else { 1652 return(ciss_poll_request(cr, timeout)); 1653 } 1654} 1655 1656/************************************************************************ 1657 * Issue a request and poll for completion. 1658 * 1659 * Timeout in milliseconds. 1660 */ 1661static int 1662ciss_poll_request(struct ciss_request *cr, int timeout) 1663{ 1664 int error; 1665 1666 debug_called(2); 1667 1668 cr->cr_flags |= CISS_REQ_POLL; 1669 if ((error = ciss_start(cr)) != 0) 1670 return(error); 1671 1672 do { 1673 ciss_done(cr->cr_sc); 1674 if (!(cr->cr_flags & CISS_REQ_POLL)) 1675 return(0); 1676 DELAY(1000); 1677 } while (timeout-- >= 0); 1678 return(EWOULDBLOCK); 1679} 1680 1681/************************************************************************ 1682 * Issue a request and sleep waiting for completion. 1683 * 1684 * Timeout in milliseconds. Note that a spurious wakeup will reset 1685 * the timeout. 1686 */ 1687static int 1688ciss_wait_request(struct ciss_request *cr, int timeout) 1689{ 1690 int s, error; 1691 1692 debug_called(2); 1693 1694 cr->cr_flags |= CISS_REQ_SLEEP; 1695 if ((error = ciss_start(cr)) != 0) 1696 return(error); 1697 1698 s = splcam(); 1699 while (cr->cr_flags & CISS_REQ_SLEEP) { 1700 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1701 /* 1702 * On wakeup or interruption due to restartable activity, go 1703 * back and check to see if we're done. 1704 */ 1705 if ((error == 0) || (error == ERESTART)) { 1706 error = 0; 1707 continue; 1708 } 1709 /* 1710 * Timeout, interrupted system call, etc. 1711 */ 1712 break; 1713 } 1714 splx(s); 1715 return(error); 1716} 1717 1718#if 0 1719/************************************************************************ 1720 * Abort a request. Note that a potential exists here to race the 1721 * request being completed; the caller must deal with this. 1722 */ 1723static int 1724ciss_abort_request(struct ciss_request *ar) 1725{ 1726 struct ciss_request *cr; 1727 struct ciss_command *cc; 1728 struct ciss_message_cdb *cmc; 1729 int error; 1730 1731 debug_called(1); 1732 1733 /* get a request */ 1734 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1735 return(error); 1736 1737 /* build the abort command */ 1738 cc = CISS_FIND_COMMAND(cr); 1739 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1740 cc->header.address.physical.target = 0; 1741 cc->header.address.physical.bus = 0; 1742 cc->cdb.cdb_length = sizeof(*cmc); 1743 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1744 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1745 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1746 cc->cdb.timeout = 30; 1747 1748 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1749 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1750 cmc->type = CISS_MESSAGE_ABORT_TASK; 1751 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1752 1753 /* 1754 * Send the request and wait for a response. If we believe we 1755 * aborted the request OK, clear the flag that indicates it's 1756 * running. 1757 */ 1758 error = ciss_synch_request(cr, 35 * 1000); 1759 if (!error) 1760 error = ciss_report_request(cr, NULL, NULL); 1761 ciss_release_request(cr); 1762 1763 return(error); 1764} 1765#endif 1766 1767 1768/************************************************************************ 1769 * Fetch and initialise a request 1770 */ 1771static int 1772ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1773{ 1774 struct ciss_request *cr; 1775 1776 debug_called(2); 1777 1778 /* 1779 * Get a request and clean it up. 1780 */ 1781 if ((cr = ciss_dequeue_free(sc)) == NULL) 1782 return(ENOMEM); 1783 1784 cr->cr_data = NULL; 1785 cr->cr_flags = 0; 1786 cr->cr_complete = NULL; 1787 cr->cr_private = NULL; 1788 1789 ciss_preen_command(cr); 1790 *crp = cr; 1791 return(0); 1792} 1793 1794static void 1795ciss_preen_command(struct ciss_request *cr) 1796{ 1797 struct ciss_command *cc; 1798 u_int32_t cmdphys; 1799 1800 /* 1801 * Clean up the command structure. 1802 * 1803 * Note that we set up the error_info structure here, since the 1804 * length can be overwritten by any command. 1805 */ 1806 cc = CISS_FIND_COMMAND(cr); 1807 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1808 cc->header.sg_total = 0; 1809 cc->header.host_tag = cr->cr_tag << 2; 1810 cc->header.host_tag_zeroes = 0; 1811 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1812 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1813 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1814 1815} 1816 1817/************************************************************************ 1818 * Release a request to the free list. 1819 */ 1820static void 1821ciss_release_request(struct ciss_request *cr) 1822{ 1823 struct ciss_softc *sc; 1824 1825 debug_called(2); 1826 1827 sc = cr->cr_sc; 1828 1829 /* release the request to the free queue */ 1830 ciss_requeue_free(cr); 1831} 1832 1833/************************************************************************ 1834 * Allocate a request that will be used to send a BMIC command. Do some 1835 * of the common setup here to avoid duplicating it everywhere else. 1836 */ 1837static int 1838ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1839 int opcode, void **bufp, size_t bufsize) 1840{ 1841 struct ciss_request *cr; 1842 struct ciss_command *cc; 1843 struct ciss_bmic_cdb *cbc; 1844 void *buf; 1845 int error; 1846 int dataout; 1847 1848 debug_called(2); 1849 1850 cr = NULL; 1851 buf = NULL; 1852 1853 /* 1854 * Get a request. 1855 */ 1856 if ((error = ciss_get_request(sc, &cr)) != 0) 1857 goto out; 1858 1859 /* 1860 * Allocate data storage if requested, determine the data direction. 1861 */ 1862 dataout = 0; 1863 if ((bufsize > 0) && (bufp != NULL)) { 1864 if (*bufp == NULL) { 1865 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1866 error = ENOMEM; 1867 goto out; 1868 } 1869 } else { 1870 buf = *bufp; 1871 dataout = 1; /* we are given a buffer, so we are writing */ 1872 } 1873 } 1874 1875 /* 1876 * Build a CISS BMIC command to get the logical drive ID. 1877 */ 1878 cr->cr_data = buf; 1879 cr->cr_length = bufsize; 1880 if (!dataout) 1881 cr->cr_flags = CISS_REQ_DATAIN; 1882 1883 cc = CISS_FIND_COMMAND(cr); 1884 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1885 cc->header.address.physical.bus = 0; 1886 cc->header.address.physical.target = 0; 1887 cc->cdb.cdb_length = sizeof(*cbc); 1888 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1889 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1890 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1891 cc->cdb.timeout = 0; 1892 1893 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1894 bzero(cbc, sizeof(*cbc)); 1895 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1896 cbc->bmic_opcode = opcode; 1897 cbc->size = htons((u_int16_t)bufsize); 1898 1899out: 1900 if (error) { 1901 if (cr != NULL) 1902 ciss_release_request(cr); 1903 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1904 free(buf, CISS_MALLOC_CLASS); 1905 } else { 1906 *crp = cr; 1907 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1908 *bufp = buf; 1909 } 1910 return(error); 1911} 1912 1913/************************************************************************ 1914 * Handle a command passed in from userspace. 1915 */ 1916static int 1917ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1918{ 1919 struct ciss_request *cr; 1920 struct ciss_command *cc; 1921 struct ciss_error_info *ce; 1922 int error = 0; 1923 1924 debug_called(1); 1925 1926 cr = NULL; 1927 1928 /* 1929 * Get a request. 1930 */ 1931 if ((error = ciss_get_request(sc, &cr)) != 0) 1932 goto out; 1933 cc = CISS_FIND_COMMAND(cr); 1934 1935 /* 1936 * Allocate an in-kernel databuffer if required, copy in user data. 1937 */ 1938 cr->cr_length = ioc->buf_size; 1939 if (ioc->buf_size > 0) { 1940 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1941 error = ENOMEM; 1942 goto out; 1943 } 1944 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1945 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1946 goto out; 1947 } 1948 } 1949 1950 /* 1951 * Build the request based on the user command. 1952 */ 1953 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1954 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1955 1956 /* XXX anything else to populate here? */ 1957 1958 /* 1959 * Run the command. 1960 */ 1961 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1962 debug(0, "request failed - %d", error); 1963 goto out; 1964 } 1965 1966 /* 1967 * Check to see if the command succeeded. 1968 */ 1969 ce = (struct ciss_error_info *)&(cc->sg[0]); 1970 if (ciss_report_request(cr, NULL, NULL) == 0) 1971 bzero(ce, sizeof(*ce)); 1972 else 1973 error = EIO; 1974 1975 /* 1976 * Copy the results back to the user. 1977 */ 1978 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1979 if ((ioc->buf_size > 0) && 1980 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1981 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1982 goto out; 1983 } 1984 1985 /* done OK */ 1986 error = 0; 1987 1988out: 1989 if ((cr != NULL) && (cr->cr_data != NULL)) 1990 free(cr->cr_data, CISS_MALLOC_CLASS); 1991 if (cr != NULL) 1992 ciss_release_request(cr); 1993 return(error); 1994} 1995 1996/************************************************************************ 1997 * Map a request into bus-visible space, initialise the scatter/gather 1998 * list. 1999 */ 2000static int 2001ciss_map_request(struct ciss_request *cr) 2002{ 2003 struct ciss_softc *sc; 2004 int error = 0; 2005 2006 debug_called(2); 2007 2008 sc = cr->cr_sc; 2009 2010 /* check that mapping is necessary */ 2011 if (cr->cr_flags & CISS_REQ_MAPPED) 2012 return(0); 2013 2014 cr->cr_flags |= CISS_REQ_MAPPED; 2015 2016 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2017 BUS_DMASYNC_PREWRITE); 2018 2019 if (cr->cr_data != NULL) { 2020 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2021 cr->cr_data, cr->cr_length, 2022 ciss_request_map_helper, cr, 0); 2023 if (error != 0) 2024 return (error); 2025 } else { 2026 /* 2027 * Post the command to the adapter. 2028 */ 2029 ciss_enqueue_busy(cr); 2030 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2031 } 2032 2033 return(0); 2034} 2035 2036static void 2037ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2038{ 2039 struct ciss_command *cc; 2040 struct ciss_request *cr; 2041 struct ciss_softc *sc; 2042 int i; 2043 2044 debug_called(2); 2045 2046 cr = (struct ciss_request *)arg; 2047 sc = cr->cr_sc; 2048 cc = CISS_FIND_COMMAND(cr); 2049 2050 for (i = 0; i < nseg; i++) { 2051 cc->sg[i].address = segs[i].ds_addr; 2052 cc->sg[i].length = segs[i].ds_len; 2053 cc->sg[i].extension = 0; 2054 } 2055 /* we leave the s/g table entirely within the command */ 2056 cc->header.sg_in_list = nseg; 2057 cc->header.sg_total = nseg; 2058 2059 if (cr->cr_flags & CISS_REQ_DATAIN) 2060 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2061 if (cr->cr_flags & CISS_REQ_DATAOUT) 2062 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2063 2064 /* 2065 * Post the command to the adapter. 2066 */ 2067 ciss_enqueue_busy(cr); 2068 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2069} 2070 2071/************************************************************************ 2072 * Unmap a request from bus-visible space. 2073 */ 2074static void 2075ciss_unmap_request(struct ciss_request *cr) 2076{ 2077 struct ciss_softc *sc; 2078 2079 debug_called(2); 2080 2081 sc = cr->cr_sc; 2082 2083 /* check that unmapping is necessary */ 2084 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2085 return; 2086 2087 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2088 BUS_DMASYNC_POSTWRITE); 2089 2090 if (cr->cr_data == NULL) 2091 goto out; 2092 2093 if (cr->cr_flags & CISS_REQ_DATAIN) 2094 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2095 if (cr->cr_flags & CISS_REQ_DATAOUT) 2096 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2097 2098 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2099out: 2100 cr->cr_flags &= ~CISS_REQ_MAPPED; 2101} 2102 2103/************************************************************************ 2104 * Attach the driver to CAM. 2105 * 2106 * We put all the logical drives on a single SCSI bus. 2107 */ 2108static int 2109ciss_cam_init(struct ciss_softc *sc) 2110{ 2111 2112 debug_called(1); 2113 2114 /* 2115 * Allocate a devq. We can reuse this for the masked physical 2116 * devices if we decide to export these as well. 2117 */ 2118 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2119 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2120 return(ENOMEM); 2121 } 2122 2123 /* 2124 * Create a SIM. 2125 */ 2126 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2127 device_get_unit(sc->ciss_dev), 2128 sc->ciss_max_requests - 2, 2129 1, 2130 sc->ciss_cam_devq)) == NULL) { 2131 ciss_printf(sc, "can't allocate CAM SIM\n"); 2132 return(ENOMEM); 2133 } 2134 2135 /* 2136 * Register bus 0 (the 'logical drives' bus) with this SIM. 2137 */ 2138 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2139 ciss_printf(sc, "can't register SCSI bus 0\n"); 2140 return(ENXIO); 2141 } 2142 2143 /* 2144 * Initiate a rescan of the bus. 2145 */ 2146 ciss_cam_rescan_all(sc); 2147 2148 return(0); 2149} 2150 2151/************************************************************************ 2152 * Initiate a rescan of the 'logical devices' SIM 2153 */ 2154static void 2155ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2156{ 2157 union ccb *ccb; 2158 2159 debug_called(1); 2160 2161 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2162 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2163 return; 2164 } 2165 2166 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2167 != CAM_REQ_CMP) { 2168 ciss_printf(sc, "rescan failed (can't create path)\n"); 2169 free(ccb, M_TEMP); 2170 return; 2171 } 2172 2173 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2174 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2175 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2176 ccb->crcn.flags = CAM_FLAG_NONE; 2177 xpt_action(ccb); 2178 2179 /* scan is now in progress */ 2180} 2181 2182static void 2183ciss_cam_rescan_all(struct ciss_softc *sc) 2184{ 2185 ciss_cam_rescan_target(sc, 0); 2186} 2187 2188static void 2189ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2190{ 2191 xpt_free_path(ccb->ccb_h.path); 2192 free(ccb, M_TEMP); 2193} 2194 2195/************************************************************************ 2196 * Handle requests coming from CAM 2197 */ 2198static void 2199ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2200{ 2201 struct ciss_softc *sc; 2202 struct ccb_scsiio *csio; 2203 int target; 2204 2205 sc = cam_sim_softc(sim); 2206 csio = (struct ccb_scsiio *)&ccb->csio; 2207 target = csio->ccb_h.target_id; 2208 2209 switch (ccb->ccb_h.func_code) { 2210 2211 /* perform SCSI I/O */ 2212 case XPT_SCSI_IO: 2213 if (!ciss_cam_action_io(sim, csio)) 2214 return; 2215 break; 2216 2217 /* perform geometry calculations */ 2218 case XPT_CALC_GEOMETRY: 2219 { 2220 struct ccb_calc_geometry *ccg = &ccb->ccg; 2221 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2222 2223 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2224 2225 /* 2226 * Use the cached geometry settings unless the fault tolerance 2227 * is invalid. 2228 */ 2229 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2230 u_int32_t secs_per_cylinder; 2231 2232 ccg->heads = 255; 2233 ccg->secs_per_track = 32; 2234 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2235 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2236 } else { 2237 ccg->heads = ld->cl_geometry.heads; 2238 ccg->secs_per_track = ld->cl_geometry.sectors; 2239 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2240 } 2241 ccb->ccb_h.status = CAM_REQ_CMP; 2242 break; 2243 } 2244 2245 /* handle path attribute inquiry */ 2246 case XPT_PATH_INQ: 2247 { 2248 struct ccb_pathinq *cpi = &ccb->cpi; 2249 2250 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2251 2252 cpi->version_num = 1; 2253 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2254 cpi->target_sprt = 0; 2255 cpi->hba_misc = 0; 2256 cpi->max_target = CISS_MAX_LOGICAL; 2257 cpi->max_lun = 0; /* 'logical drive' channel only */ 2258 cpi->initiator_id = CISS_MAX_LOGICAL; 2259 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2260 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2261 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2262 cpi->unit_number = cam_sim_unit(sim); 2263 cpi->bus_id = cam_sim_bus(sim); 2264 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2265 ccb->ccb_h.status = CAM_REQ_CMP; 2266 break; 2267 } 2268 2269 case XPT_GET_TRAN_SETTINGS: 2270 { 2271 struct ccb_trans_settings *cts = &ccb->cts; 2272 int bus, target; 2273 2274 bus = cam_sim_bus(sim); 2275 target = cts->ccb_h.target_id; 2276 2277 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2278 cts->valid = 0; 2279 2280 /* disconnect always OK */ 2281 cts->flags |= CCB_TRANS_DISC_ENB; 2282 cts->valid |= CCB_TRANS_DISC_VALID; 2283 2284 cts->ccb_h.status = CAM_REQ_CMP; 2285 break; 2286 } 2287 2288 default: /* we can't do this */ 2289 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2290 ccb->ccb_h.status = CAM_REQ_INVALID; 2291 break; 2292 } 2293 2294 xpt_done(ccb); 2295} 2296 2297/************************************************************************ 2298 * Handle a CAM SCSI I/O request. 2299 */ 2300static int 2301ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2302{ 2303 struct ciss_softc *sc; 2304 int bus, target; 2305 struct ciss_request *cr; 2306 struct ciss_command *cc; 2307 int error; 2308 2309 sc = cam_sim_softc(sim); 2310 bus = cam_sim_bus(sim); 2311 target = csio->ccb_h.target_id; 2312 2313 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2314 2315 /* check for I/O attempt to nonexistent device */ 2316 if ((bus != 0) || 2317 (target >= CISS_MAX_LOGICAL)) { 2318 debug(3, " device does not exist"); 2319 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2320 } 2321 2322 /* firmware does not support commands > 10 bytes */ 2323 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2324 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2325 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2326 } 2327 2328 /* check that the CDB pointer is not to a physical address */ 2329 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2330 debug(3, " CDB pointer is to physical address"); 2331 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2332 } 2333 2334 /* if there is data transfer, it must be to/from a virtual address */ 2335 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2336 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2337 debug(3, " data pointer is to physical address"); 2338 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2339 } 2340 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2341 debug(3, " data has premature s/g setup"); 2342 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2343 } 2344 } 2345 2346 /* abandon aborted ccbs or those that have failed validation */ 2347 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2348 debug(3, "abandoning CCB due to abort/validation failure"); 2349 return(EINVAL); 2350 } 2351 2352 /* handle emulation of some SCSI commands ourself */ 2353 if (ciss_cam_emulate(sc, csio)) 2354 return(0); 2355 2356 /* 2357 * Get a request to manage this command. If we can't, return the 2358 * ccb, freeze the queue and flag so that we unfreeze it when a 2359 * request completes. 2360 */ 2361 if ((error = ciss_get_request(sc, &cr)) != 0) { 2362 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2363 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2364 return(error); 2365 } 2366 2367 /* 2368 * Build the command. 2369 */ 2370 cc = CISS_FIND_COMMAND(cr); 2371 cr->cr_data = csio->data_ptr; 2372 cr->cr_length = csio->dxfer_len; 2373 cr->cr_complete = ciss_cam_complete; 2374 cr->cr_private = csio; 2375 2376 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2377 cc->header.address.logical.lun = target; 2378 cc->cdb.cdb_length = csio->cdb_len; 2379 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2380 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2381 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2382 cr->cr_flags = CISS_REQ_DATAOUT; 2383 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2384 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2385 cr->cr_flags = CISS_REQ_DATAIN; 2386 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2387 } else { 2388 cr->cr_flags = 0; 2389 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2390 } 2391 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2392 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2393 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2394 } else { 2395 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2396 } 2397 2398 /* 2399 * Submit the request to the adapter. 2400 * 2401 * Note that this may fail if we're unable to map the request (and 2402 * if we ever learn a transport layer other than simple, may fail 2403 * if the adapter rejects the command). 2404 */ 2405 if ((error = ciss_start(cr)) != 0) { 2406 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2407 if (error == EINPROGRESS) { 2408 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2409 error = 0; 2410 } else { 2411 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2412 ciss_release_request(cr); 2413 } 2414 return(error); 2415 } 2416 2417 return(0); 2418} 2419 2420/************************************************************************ 2421 * Emulate SCSI commands the adapter doesn't handle as we might like. 2422 */ 2423static int 2424ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2425{ 2426 int target; 2427 u_int8_t opcode; 2428 2429 target = csio->ccb_h.target_id; 2430 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2431 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2432 2433 /* 2434 * Handle requests for volumes that don't exist. A selection timeout 2435 * is slightly better than an illegal request. Other errors might be 2436 * better. 2437 */ 2438 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2439 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2440 xpt_done((union ccb *)csio); 2441 return(1); 2442 } 2443 2444 /* 2445 * Handle requests for volumes that exist but are offline. 2446 * 2447 * I/O operations should fail, everything else should work. 2448 */ 2449 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2450 switch(opcode) { 2451 case READ_6: 2452 case READ_10: 2453 case READ_12: 2454 case WRITE_6: 2455 case WRITE_10: 2456 case WRITE_12: 2457 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2458 xpt_done((union ccb *)csio); 2459 return(1); 2460 } 2461 } 2462 2463 /* if we have to fake Synchronise Cache */ 2464 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2465 /* 2466 * If this is a Synchronise Cache command, typically issued when 2467 * a device is closed, flush the adapter and complete now. 2468 */ 2469 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2470 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2471 ciss_flush_adapter(sc); 2472 csio->ccb_h.status = CAM_REQ_CMP; 2473 xpt_done((union ccb *)csio); 2474 return(1); 2475 } 2476 } 2477 2478 return(0); 2479} 2480 2481/************************************************************************ 2482 * Check for possibly-completed commands. 2483 */ 2484static void 2485ciss_cam_poll(struct cam_sim *sim) 2486{ 2487 struct ciss_softc *sc = cam_sim_softc(sim); 2488 2489 debug_called(2); 2490 2491 ciss_done(sc); 2492} 2493 2494/************************************************************************ 2495 * Handle completion of a command - pass results back through the CCB 2496 */ 2497static void 2498ciss_cam_complete(struct ciss_request *cr) 2499{ 2500 struct ciss_softc *sc; 2501 struct ciss_command *cc; 2502 struct ciss_error_info *ce; 2503 struct ccb_scsiio *csio; 2504 int scsi_status; 2505 int command_status; 2506 2507 debug_called(2); 2508 2509 sc = cr->cr_sc; 2510 cc = CISS_FIND_COMMAND(cr); 2511 ce = (struct ciss_error_info *)&(cc->sg[0]); 2512 csio = (struct ccb_scsiio *)cr->cr_private; 2513 2514 /* 2515 * Extract status values from request. 2516 */ 2517 ciss_report_request(cr, &command_status, &scsi_status); 2518 csio->scsi_status = scsi_status; 2519 2520 /* 2521 * Handle specific SCSI status values. 2522 */ 2523 switch(scsi_status) { 2524 /* no status due to adapter error */ 2525 case -1: 2526 debug(0, "adapter error"); 2527 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2528 break; 2529 2530 /* no status due to command completed OK */ 2531 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2532 debug(2, "SCSI_STATUS_OK"); 2533 csio->ccb_h.status = CAM_REQ_CMP; 2534 break; 2535 2536 /* check condition, sense data included */ 2537 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2538 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2539 ce->sense_length, ce->residual_count); 2540 bzero(&csio->sense_data, SSD_FULL_SIZE); 2541 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2542 csio->sense_len = ce->sense_length; 2543 csio->resid = ce->residual_count; 2544 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2545#ifdef CISS_DEBUG 2546 { 2547 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2548 debug(0, "sense key %x", sns->flags & SSD_KEY); 2549 } 2550#endif 2551 break; 2552 2553 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2554 debug(0, "SCSI_STATUS_BUSY"); 2555 csio->ccb_h.status = CAM_SCSI_BUSY; 2556 break; 2557 2558 default: 2559 debug(0, "unknown status 0x%x", csio->scsi_status); 2560 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2561 break; 2562 } 2563 2564 /* handle post-command fixup */ 2565 ciss_cam_complete_fixup(sc, csio); 2566 2567 /* tell CAM we're ready for more commands */ 2568 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2569 2570 xpt_done((union ccb *)csio); 2571 ciss_release_request(cr); 2572} 2573 2574/******************************************************************************** 2575 * Fix up the result of some commands here. 2576 */ 2577static void 2578ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2579{ 2580 struct scsi_inquiry_data *inq; 2581 struct ciss_ldrive *cl; 2582 int target; 2583 2584 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2585 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2586 2587 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2588 target = csio->ccb_h.target_id; 2589 cl = &sc->ciss_logical[target]; 2590 2591 padstr(inq->vendor, "COMPAQ", 8); 2592 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2593 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2594 } 2595} 2596 2597 2598/******************************************************************************** 2599 * Find a peripheral attached at (target) 2600 */ 2601static struct cam_periph * 2602ciss_find_periph(struct ciss_softc *sc, int target) 2603{ 2604 struct cam_periph *periph; 2605 struct cam_path *path; 2606 int status; 2607 2608 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2609 if (status == CAM_REQ_CMP) { 2610 periph = cam_periph_find(path, NULL); 2611 xpt_free_path(path); 2612 } else { 2613 periph = NULL; 2614 } 2615 return(periph); 2616} 2617 2618/******************************************************************************** 2619 * Name the device at (target) 2620 * 2621 * XXX is this strictly correct? 2622 */ 2623static int 2624ciss_name_device(struct ciss_softc *sc, int target) 2625{ 2626 struct cam_periph *periph; 2627 2628 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2629 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2630 return(0); 2631 } 2632 sc->ciss_logical[target].cl_name[0] = 0; 2633 return(ENOENT); 2634} 2635 2636/************************************************************************ 2637 * Periodic status monitoring. 2638 */ 2639static void 2640ciss_periodic(void *arg) 2641{ 2642 struct ciss_softc *sc; 2643 2644 debug_called(1); 2645 2646 sc = (struct ciss_softc *)arg; 2647 2648 /* 2649 * Check the adapter heartbeat. 2650 */ 2651 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2652 sc->ciss_heart_attack++; 2653 debug(0, "adapter heart attack in progress 0x%x/%d", 2654 sc->ciss_heartbeat, sc->ciss_heart_attack); 2655 if (sc->ciss_heart_attack == 3) { 2656 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2657 /* XXX should reset adapter here */ 2658 } 2659 } else { 2660 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2661 sc->ciss_heart_attack = 0; 2662 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2663 } 2664 2665 /* 2666 * If the notify event request has died for some reason, or has 2667 * not started yet, restart it. 2668 */ 2669 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2670 debug(0, "(re)starting Event Notify chain"); 2671 ciss_notify_event(sc); 2672 } 2673 2674 /* 2675 * Reschedule. 2676 */ 2677 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2678 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2679} 2680 2681/************************************************************************ 2682 * Request a notification response from the adapter. 2683 * 2684 * If (cr) is NULL, this is the first request of the adapter, so 2685 * reset the adapter's message pointer and start with the oldest 2686 * message available. 2687 */ 2688static void 2689ciss_notify_event(struct ciss_softc *sc) 2690{ 2691 struct ciss_request *cr; 2692 struct ciss_command *cc; 2693 struct ciss_notify_cdb *cnc; 2694 int error; 2695 2696 debug_called(1); 2697 2698 cr = sc->ciss_periodic_notify; 2699 2700 /* get a request if we don't already have one */ 2701 if (cr == NULL) { 2702 if ((error = ciss_get_request(sc, &cr)) != 0) { 2703 debug(0, "can't get notify event request"); 2704 goto out; 2705 } 2706 sc->ciss_periodic_notify = cr; 2707 cr->cr_complete = ciss_notify_complete; 2708 debug(1, "acquired request %d", cr->cr_tag); 2709 } 2710 2711 /* 2712 * Get a databuffer if we don't already have one, note that the 2713 * adapter command wants a larger buffer than the actual 2714 * structure. 2715 */ 2716 if (cr->cr_data == NULL) { 2717 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2718 debug(0, "can't get notify event request buffer"); 2719 error = ENOMEM; 2720 goto out; 2721 } 2722 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2723 } 2724 2725 /* re-setup the request's command (since we never release it) XXX overkill*/ 2726 ciss_preen_command(cr); 2727 2728 /* (re)build the notify event command */ 2729 cc = CISS_FIND_COMMAND(cr); 2730 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2731 cc->header.address.physical.bus = 0; 2732 cc->header.address.physical.target = 0; 2733 2734 cc->cdb.cdb_length = sizeof(*cnc); 2735 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2736 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2737 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2738 cc->cdb.timeout = 0; /* no timeout, we hope */ 2739 2740 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2741 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2742 cnc->opcode = CISS_OPCODE_READ; 2743 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2744 cnc->timeout = 0; /* no timeout, we hope */ 2745 cnc->synchronous = 0; 2746 cnc->ordered = 0; 2747 cnc->seek_to_oldest = 0; 2748 cnc->new_only = 0; 2749 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2750 2751 /* submit the request */ 2752 error = ciss_start(cr); 2753 2754 out: 2755 if (error) { 2756 if (cr != NULL) { 2757 if (cr->cr_data != NULL) 2758 free(cr->cr_data, CISS_MALLOC_CLASS); 2759 ciss_release_request(cr); 2760 } 2761 sc->ciss_periodic_notify = NULL; 2762 debug(0, "can't submit notify event request"); 2763 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2764 } else { 2765 debug(1, "notify event submitted"); 2766 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2767 } 2768} 2769 2770static void 2771ciss_notify_complete(struct ciss_request *cr) 2772{ 2773 struct ciss_command *cc; 2774 struct ciss_notify *cn; 2775 struct ciss_softc *sc; 2776 int scsi_status; 2777 int command_status; 2778 2779 debug_called(1); 2780 2781 cc = CISS_FIND_COMMAND(cr); 2782 cn = (struct ciss_notify *)cr->cr_data; 2783 sc = cr->cr_sc; 2784 2785 /* 2786 * Report request results, decode status. 2787 */ 2788 ciss_report_request(cr, &command_status, &scsi_status); 2789 2790 /* 2791 * Abort the chain on a fatal error. 2792 * 2793 * XXX which of these are actually errors? 2794 */ 2795 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2796 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2797 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2798 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2799 ciss_name_command_status(command_status)); 2800 ciss_release_request(cr); 2801 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2802 return; 2803 } 2804 2805 /* 2806 * If the adapter gave us a text message, print it. 2807 */ 2808 if (cn->message[0] != 0) 2809 ciss_printf(sc, "*** %.80s\n", cn->message); 2810 2811 debug(0, "notify event class %d subclass %d detail %d", 2812 cn->class, cn->subclass, cn->detail); 2813 2814 /* 2815 * If there's room, save the event for a user-level tool. 2816 */ 2817 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2818 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2819 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2820 } 2821 2822 /* 2823 * Some events are directly of interest to us. 2824 */ 2825 switch (cn->class) { 2826 case CISS_NOTIFY_LOGICAL: 2827 ciss_notify_logical(sc, cn); 2828 break; 2829 case CISS_NOTIFY_PHYSICAL: 2830 ciss_notify_physical(sc, cn); 2831 break; 2832 } 2833 2834 /* 2835 * If the response indicates that the notifier has been aborted, 2836 * release the notifier command. 2837 */ 2838 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2839 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2840 (cn->detail == 1)) { 2841 debug(0, "notifier exiting"); 2842 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2843 ciss_release_request(cr); 2844 sc->ciss_periodic_notify = NULL; 2845 wakeup(&sc->ciss_periodic_notify); 2846 } 2847 2848 /* 2849 * Send a new notify event command, if we're not aborting. 2850 */ 2851 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2852 ciss_notify_event(sc); 2853 } 2854} 2855 2856/************************************************************************ 2857 * Abort the Notify Event chain. 2858 * 2859 * Note that we can't just abort the command in progress; we have to 2860 * explicitly issue an Abort Notify Event command in order for the 2861 * adapter to clean up correctly. 2862 * 2863 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2864 * the chain will not restart itself. 2865 */ 2866static int 2867ciss_notify_abort(struct ciss_softc *sc) 2868{ 2869 struct ciss_request *cr; 2870 struct ciss_command *cc; 2871 struct ciss_notify_cdb *cnc; 2872 int error, s, command_status, scsi_status; 2873 2874 debug_called(1); 2875 2876 cr = NULL; 2877 error = 0; 2878 2879 /* verify that there's an outstanding command */ 2880 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2881 goto out; 2882 2883 /* get a command to issue the abort with */ 2884 if ((error = ciss_get_request(sc, &cr))) 2885 goto out; 2886 2887 /* get a buffer for the result */ 2888 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2889 debug(0, "can't get notify event request buffer"); 2890 error = ENOMEM; 2891 goto out; 2892 } 2893 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2894 2895 /* build the CDB */ 2896 cc = CISS_FIND_COMMAND(cr); 2897 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2898 cc->header.address.physical.bus = 0; 2899 cc->header.address.physical.target = 0; 2900 cc->cdb.cdb_length = sizeof(*cnc); 2901 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2902 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2903 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2904 cc->cdb.timeout = 0; /* no timeout, we hope */ 2905 2906 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2907 bzero(cnc, sizeof(*cnc)); 2908 cnc->opcode = CISS_OPCODE_WRITE; 2909 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2910 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2911 2912 ciss_print_request(cr); 2913 2914 /* 2915 * Submit the request and wait for it to complete. 2916 */ 2917 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2918 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2919 goto out; 2920 } 2921 2922 /* 2923 * Check response. 2924 */ 2925 ciss_report_request(cr, &command_status, &scsi_status); 2926 switch(command_status) { 2927 case CISS_CMD_STATUS_SUCCESS: 2928 break; 2929 case CISS_CMD_STATUS_INVALID_COMMAND: 2930 /* 2931 * Some older adapters don't support the CISS version of this 2932 * command. Fall back to using the BMIC version. 2933 */ 2934 error = ciss_notify_abort_bmic(sc); 2935 if (error != 0) 2936 goto out; 2937 break; 2938 2939 case CISS_CMD_STATUS_TARGET_STATUS: 2940 /* 2941 * This can happen if the adapter thinks there wasn't an outstanding 2942 * Notify Event command but we did. We clean up here. 2943 */ 2944 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2945 if (sc->ciss_periodic_notify != NULL) 2946 ciss_release_request(sc->ciss_periodic_notify); 2947 error = 0; 2948 goto out; 2949 } 2950 /* FALLTHROUGH */ 2951 2952 default: 2953 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2954 ciss_name_command_status(command_status)); 2955 error = EIO; 2956 goto out; 2957 } 2958 2959 /* 2960 * Sleep waiting for the notifier command to complete. Note 2961 * that if it doesn't, we may end up in a bad situation, since 2962 * the adapter may deliver it later. Also note that the adapter 2963 * requires the Notify Event command to be cancelled in order to 2964 * maintain internal bookkeeping. 2965 */ 2966 s = splcam(); 2967 while (sc->ciss_periodic_notify != NULL) { 2968 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2969 if (error == EWOULDBLOCK) { 2970 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2971 break; 2972 } 2973 } 2974 splx(s); 2975 2976 out: 2977 /* release the cancel request */ 2978 if (cr != NULL) { 2979 if (cr->cr_data != NULL) 2980 free(cr->cr_data, CISS_MALLOC_CLASS); 2981 ciss_release_request(cr); 2982 } 2983 if (error == 0) 2984 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2985 return(error); 2986} 2987 2988/************************************************************************ 2989 * Abort the Notify Event chain using a BMIC command. 2990 */ 2991static int 2992ciss_notify_abort_bmic(struct ciss_softc *sc) 2993{ 2994 struct ciss_request *cr; 2995 int error, command_status; 2996 2997 debug_called(1); 2998 2999 cr = NULL; 3000 error = 0; 3001 3002 /* verify that there's an outstanding command */ 3003 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3004 goto out; 3005 3006 /* 3007 * Build a BMIC command to cancel the Notify on Event command. 3008 * 3009 * Note that we are sending a CISS opcode here. Odd. 3010 */ 3011 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3012 NULL, 0)) != 0) 3013 goto out; 3014 3015 /* 3016 * Submit the request and wait for it to complete. 3017 */ 3018 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3019 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3020 goto out; 3021 } 3022 3023 /* 3024 * Check response. 3025 */ 3026 ciss_report_request(cr, &command_status, NULL); 3027 switch(command_status) { 3028 case CISS_CMD_STATUS_SUCCESS: 3029 break; 3030 default: 3031 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3032 ciss_name_command_status(command_status)); 3033 error = EIO; 3034 goto out; 3035 } 3036 3037out: 3038 if (cr != NULL) 3039 ciss_release_request(cr); 3040 return(error); 3041} 3042 3043/************************************************************************ 3044 * Handle a notify event relating to the status of a logical drive. 3045 * 3046 * XXX need to be able to defer some of these to properly handle 3047 * calling the "ID Physical drive" command, unless the 'extended' 3048 * drive IDs are always in BIG_MAP format. 3049 */ 3050static void 3051ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3052{ 3053 struct ciss_ldrive *ld; 3054 int ostatus; 3055 3056 debug_called(2); 3057 3058 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3059 3060 switch (cn->subclass) { 3061 case CISS_NOTIFY_LOGICAL_STATUS: 3062 switch (cn->detail) { 3063 case 0: 3064 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3065 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3066 cn->data.logical_status.logical_drive, ld->cl_name, 3067 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3068 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3069 cn->data.logical_status.spare_state, 3070 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3071 3072 /* 3073 * Update our idea of the drive's status. 3074 */ 3075 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3076 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3077 if (ld->cl_lstatus != NULL) 3078 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3079 3080#if 0 3081 /* 3082 * Have CAM rescan the drive if its status has changed. 3083 */ 3084 if (ostatus != ld->cl_status) 3085 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3086#endif 3087 3088 break; 3089 3090 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3091 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3092 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3093 cn->data.logical_status.logical_drive, ld->cl_name); 3094 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3095 break; 3096 3097 case 2: 3098 case 3: 3099 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3100 cn->data.rebuild_aborted.logical_drive, 3101 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3102 (cn->detail == 2) ? "read" : "write"); 3103 break; 3104 } 3105 break; 3106 3107 case CISS_NOTIFY_LOGICAL_ERROR: 3108 if (cn->detail == 0) { 3109 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3110 cn->data.io_error.logical_drive, 3111 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3112 cn->data.io_error.failure_bus, 3113 cn->data.io_error.failure_drive); 3114 /* XXX should we take the drive down at this point, or will we be told? */ 3115 } 3116 break; 3117 3118 case CISS_NOTIFY_LOGICAL_SURFACE: 3119 if (cn->detail == 0) 3120 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3121 cn->data.consistency_completed.logical_drive, 3122 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3123 break; 3124 } 3125} 3126 3127/************************************************************************ 3128 * Handle a notify event relating to the status of a physical drive. 3129 */ 3130static void 3131ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3132{ 3133 3134} 3135 3136/************************************************************************ 3137 * Print a request. 3138 */ 3139static void 3140ciss_print_request(struct ciss_request *cr) 3141{ 3142 struct ciss_softc *sc; 3143 struct ciss_command *cc; 3144 int i; 3145 3146 sc = cr->cr_sc; 3147 cc = CISS_FIND_COMMAND(cr); 3148 3149 ciss_printf(sc, "REQUEST @ %p\n", cr); 3150 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3151 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3152 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3153 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3154 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3155 switch(cc->header.address.mode.mode) { 3156 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3157 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3158 ciss_printf(sc, " physical bus %d target %d\n", 3159 cc->header.address.physical.bus, cc->header.address.physical.target); 3160 break; 3161 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3162 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3163 break; 3164 } 3165 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3166 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3167 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3168 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3169 cc->cdb.cdb_length, 3170 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3171 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3172 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3173 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3174 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3175 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3176 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3177 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3178 3179 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3180 /* XXX print error info */ 3181 } else { 3182 /* since we don't use chained s/g, don't support it here */ 3183 for (i = 0; i < cc->header.sg_in_list; i++) { 3184 if ((i % 4) == 0) 3185 ciss_printf(sc, " "); 3186 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3187 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3188 printf("\n"); 3189 } 3190 } 3191} 3192 3193/************************************************************************ 3194 * Print information about the status of a logical drive. 3195 */ 3196static void 3197ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3198{ 3199 int bus, target, i; 3200 3201 if (ld->cl_lstatus == NULL) { 3202 printf("does not exist\n"); 3203 return; 3204 } 3205 3206 /* print drive status */ 3207 switch(ld->cl_lstatus->status) { 3208 case CISS_LSTATUS_OK: 3209 printf("online\n"); 3210 break; 3211 case CISS_LSTATUS_INTERIM_RECOVERY: 3212 printf("in interim recovery mode\n"); 3213 break; 3214 case CISS_LSTATUS_READY_RECOVERY: 3215 printf("ready to begin recovery\n"); 3216 break; 3217 case CISS_LSTATUS_RECOVERING: 3218 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3219 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3220 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3221 bus, target, ld->cl_lstatus->blocks_to_recover); 3222 break; 3223 case CISS_LSTATUS_EXPANDING: 3224 printf("being expanded, %u blocks remaining\n", 3225 ld->cl_lstatus->blocks_to_recover); 3226 break; 3227 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3228 printf("queued for expansion\n"); 3229 break; 3230 case CISS_LSTATUS_FAILED: 3231 printf("queued for expansion\n"); 3232 break; 3233 case CISS_LSTATUS_WRONG_PDRIVE: 3234 printf("wrong physical drive inserted\n"); 3235 break; 3236 case CISS_LSTATUS_MISSING_PDRIVE: 3237 printf("missing a needed physical drive\n"); 3238 break; 3239 case CISS_LSTATUS_BECOMING_READY: 3240 printf("becoming ready\n"); 3241 break; 3242 } 3243 3244 /* print failed physical drives */ 3245 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3246 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3247 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3248 if (bus == -1) 3249 continue; 3250 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3251 ld->cl_lstatus->drive_failure_map[i]); 3252 } 3253} 3254 3255#ifdef CISS_DEBUG 3256/************************************************************************ 3257 * Print information about the controller/driver. 3258 */ 3259static void 3260ciss_print_adapter(struct ciss_softc *sc) 3261{ 3262 int i; 3263 3264 ciss_printf(sc, "ADAPTER:\n"); 3265 for (i = 0; i < CISSQ_COUNT; i++) { 3266 ciss_printf(sc, "%s %d/%d\n", 3267 i == 0 ? "free" : 3268 i == 1 ? "busy" : "complete", 3269 sc->ciss_qstat[i].q_length, 3270 sc->ciss_qstat[i].q_max); 3271 } 3272 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3273 ciss_printf(sc, "notify_head/tail %d/%d\n", 3274 sc->ciss_notify_head, sc->ciss_notify_tail); 3275 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3276 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3277 3278 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3279 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3280 ciss_print_ldrive(sc, sc->ciss_logical + i); 3281 } 3282 3283 for (i = 1; i < sc->ciss_max_requests; i++) 3284 ciss_print_request(sc->ciss_request + i); 3285} 3286 3287/* DDB hook */ 3288static void 3289ciss_print0(void) 3290{ 3291 struct ciss_softc *sc; 3292 3293 sc = devclass_get_softc(devclass_find("ciss"), 0); 3294 if (sc == NULL) { 3295 printf("no ciss controllers\n"); 3296 } else { 3297 ciss_print_adapter(sc); 3298 } 3299} 3300#endif 3301 3302/************************************************************************ 3303 * Return a name for a logical drive status value. 3304 */ 3305static const char * 3306ciss_name_ldrive_status(int status) 3307{ 3308 switch (status) { 3309 case CISS_LSTATUS_OK: 3310 return("OK"); 3311 case CISS_LSTATUS_FAILED: 3312 return("failed"); 3313 case CISS_LSTATUS_NOT_CONFIGURED: 3314 return("not configured"); 3315 case CISS_LSTATUS_INTERIM_RECOVERY: 3316 return("interim recovery"); 3317 case CISS_LSTATUS_READY_RECOVERY: 3318 return("ready for recovery"); 3319 case CISS_LSTATUS_RECOVERING: 3320 return("recovering"); 3321 case CISS_LSTATUS_WRONG_PDRIVE: 3322 return("wrong physical drive inserted"); 3323 case CISS_LSTATUS_MISSING_PDRIVE: 3324 return("missing physical drive"); 3325 case CISS_LSTATUS_EXPANDING: 3326 return("expanding"); 3327 case CISS_LSTATUS_BECOMING_READY: 3328 return("becoming ready"); 3329 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3330 return("queued for expansion"); 3331 } 3332 return("unknown status"); 3333} 3334 3335/************************************************************************ 3336 * Return an online/offline/nonexistent value for a logical drive 3337 * status value. 3338 */ 3339static int 3340ciss_decode_ldrive_status(int status) 3341{ 3342 switch(status) { 3343 case CISS_LSTATUS_NOT_CONFIGURED: 3344 return(CISS_LD_NONEXISTENT); 3345 3346 case CISS_LSTATUS_OK: 3347 case CISS_LSTATUS_INTERIM_RECOVERY: 3348 case CISS_LSTATUS_READY_RECOVERY: 3349 case CISS_LSTATUS_RECOVERING: 3350 case CISS_LSTATUS_EXPANDING: 3351 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3352 return(CISS_LD_ONLINE); 3353 3354 case CISS_LSTATUS_FAILED: 3355 case CISS_LSTATUS_WRONG_PDRIVE: 3356 case CISS_LSTATUS_MISSING_PDRIVE: 3357 case CISS_LSTATUS_BECOMING_READY: 3358 default: 3359 return(CISS_LD_OFFLINE); 3360 } 3361} 3362 3363 3364/************************************************************************ 3365 * Return a name for a logical drive's organisation. 3366 */ 3367static const char * 3368ciss_name_ldrive_org(int org) 3369{ 3370 switch(org) { 3371 case CISS_LDRIVE_RAID0: 3372 return("RAID 0"); 3373 case CISS_LDRIVE_RAID1: 3374 return("RAID 1"); 3375 case CISS_LDRIVE_RAID4: 3376 return("RAID 4"); 3377 case CISS_LDRIVE_RAID5: 3378 return("RAID 5"); 3379 case CISS_LDRIVE_RAID51: 3380 return("RAID 5+1"); 3381 case CISS_LDRIVE_RAIDADG: 3382 return("RAID ADG"); 3383 } 3384 return("unkown"); 3385} 3386 3387/************************************************************************ 3388 * Return a name for a command status value. 3389 */ 3390static const char * 3391ciss_name_command_status(int status) 3392{ 3393 switch(status) { 3394 case CISS_CMD_STATUS_SUCCESS: 3395 return("success"); 3396 case CISS_CMD_STATUS_TARGET_STATUS: 3397 return("target status"); 3398 case CISS_CMD_STATUS_DATA_UNDERRUN: 3399 return("data underrun"); 3400 case CISS_CMD_STATUS_DATA_OVERRUN: 3401 return("data overrun"); 3402 case CISS_CMD_STATUS_INVALID_COMMAND: 3403 return("invalid command"); 3404 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3405 return("protocol error"); 3406 case CISS_CMD_STATUS_HARDWARE_ERROR: 3407 return("hardware error"); 3408 case CISS_CMD_STATUS_CONNECTION_LOST: 3409 return("connection lost"); 3410 case CISS_CMD_STATUS_ABORTED: 3411 return("aborted"); 3412 case CISS_CMD_STATUS_ABORT_FAILED: 3413 return("abort failed"); 3414 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3415 return("unsolicited abort"); 3416 case CISS_CMD_STATUS_TIMEOUT: 3417 return("timeout"); 3418 case CISS_CMD_STATUS_UNABORTABLE: 3419 return("unabortable"); 3420 } 3421 return("unknown status"); 3422} 3423 3424/************************************************************************ 3425 * Handle an open on the control device. 3426 */ 3427static int 3428ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3429{ 3430 struct ciss_softc *sc; 3431 3432 debug_called(1); 3433 3434 sc = (struct ciss_softc *)dev->si_drv1; 3435 3436 /* we might want to veto if someone already has us open */ 3437 3438 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3439 return(0); 3440} 3441 3442/************************************************************************ 3443 * Handle the last close on the control device. 3444 */ 3445static int 3446ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3447{ 3448 struct ciss_softc *sc; 3449 3450 debug_called(1); 3451 3452 sc = (struct ciss_softc *)dev->si_drv1; 3453 3454 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3455 return (0); 3456} 3457 3458/******************************************************************************** 3459 * Handle adapter-specific control operations. 3460 * 3461 * Note that the API here is compatible with the Linux driver, in order to 3462 * simplify the porting of Compaq's userland tools. 3463 */ 3464static int 3465ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3466{ 3467 struct ciss_softc *sc; 3468 int error; 3469 3470 debug_called(1); 3471 3472 sc = (struct ciss_softc *)dev->si_drv1; 3473 error = 0; 3474 3475 switch(cmd) { 3476 case CCISS_GETPCIINFO: 3477 { 3478 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3479 3480 pis->bus = pci_get_bus(sc->ciss_dev); 3481 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3482 pis->board_id = pci_get_devid(sc->ciss_dev); 3483 3484 break; 3485 } 3486 3487 case CCISS_GETINTINFO: 3488 { 3489 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3490 3491 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3492 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3493 3494 break; 3495 } 3496 3497 case CCISS_SETINTINFO: 3498 { 3499 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3500 3501 if ((cis->delay == 0) && (cis->count == 0)) { 3502 error = EINVAL; 3503 break; 3504 } 3505 3506 /* 3507 * XXX apparently this is only safe if the controller is idle, 3508 * we should suspend it before doing this. 3509 */ 3510 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3511 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3512 3513 if (ciss_update_config(sc)) 3514 error = EIO; 3515 3516 /* XXX resume the controller here */ 3517 break; 3518 } 3519 3520 case CCISS_GETNODENAME: 3521 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3522 sizeof(NodeName_type)); 3523 break; 3524 3525 case CCISS_SETNODENAME: 3526 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3527 sizeof(NodeName_type)); 3528 if (ciss_update_config(sc)) 3529 error = EIO; 3530 break; 3531 3532 case CCISS_GETHEARTBEAT: 3533 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3534 break; 3535 3536 case CCISS_GETBUSTYPES: 3537 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3538 break; 3539 3540 case CCISS_GETFIRMVER: 3541 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3542 sizeof(FirmwareVer_type)); 3543 break; 3544 3545 case CCISS_GETDRIVERVER: 3546 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3547 break; 3548 3549 case CCISS_REVALIDVOLS: 3550 /* 3551 * This is a bit ugly; to do it "right" we really need 3552 * to find any disks that have changed, kick CAM off them, 3553 * then rescan only these disks. It'd be nice if they 3554 * a) told us which disk(s) they were going to play with, 3555 * and b) which ones had arrived. 8( 3556 */ 3557 break; 3558 3559 case CCISS_PASSTHRU: 3560 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3561 break; 3562 3563 default: 3564 debug(0, "unknown ioctl 0x%lx", cmd); 3565 3566 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3567 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3568 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3569 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3570 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3571 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3572 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3573 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3574 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3575 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3576 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3577 3578 error = ENOIOCTL; 3579 break; 3580 } 3581 3582 return(error); 3583} 3584